I have a problem when sharing topics on Facebook

please help I am using the free version of this plugin But when I share any article from my site using this plugin the following does not appear on Facebook
-Pictures
-Title
-Details below the title
This is the course link for preview
https://free.nt3lm.com/course/%d8%a7%d9%84%d9%84%d8%ba%d8%a9-%d8%a7%d9%84%d8%b9%d8%b1%d8%a8%d9%8a%d8%a9-%d9%84%d9%84%d8%b5%d9%81-%d8%a7%d9%84%d8%b3%d8%a7%d8%af%d8%b3-%d8%a7%d9%84%d8%a5%d8%a8%d8%aa%d8%af%d8%a7%d8%a6%d9%89-%d8%a7-2/#component=course

The page I need help with: [log in to see the link]